Dental fulcrum

ABSTRACT

A dental fulcrum comprised of soft material, such as foam, containing a slit for the insertion of incisors, and used as a pivot for scaling, or other treating, teeth by an oral hygienist or dentist. The dental fulcrum protects the fingers of an oral hygienist or dentist from calluses, or loss of sensitivity over time, while at the same time providing friction to reduce the risk of injury causes by fingers slipping on wet incisors. The device may be disposable or reusable, depending on the material used. Foam provides the additional benefit of absorbing saliva to further reduce the risk of slippage.

CROSS-REFERENCE TO RELATED APPLICATION

Applicant claims the benefit of provisional patent application number 61/426,930 filed on Dec. 23, 2010.

FEDERALLY SPONSORED RESEARCH

Not Applicable

SEQUENCE LISTING OR PROGRAM

Not Applicable

STATEMENT REGARDING COPYRIGHTED MATERIAL

Portions of the disclosure of this patent document contain material that is subject to copyright protection. The copyright owner has no objection to the facsimile reproduction by anyone of the patent document or the patent disclosure as it appears in the Patent and Trademark Office file or records, but otherwise reserves all copyright rights whatsoever.

BACKGROUND

The invention relates to the field of dentistry and oral hygiene, in particular, a support device that assists with dental treatment involving the mandibular (lower) teeth by providing a finger rest to act as a fulcrum on the sharp edges of the incisors (front teeth), or to act as a fulcrum in the case of loose incisors or no incisors.

Oral hygienists and dentists must often treat the lower mandibular teeth, for example, to scale off calculus, or clean off tartar. To do this, the oral hygienist or dentist must rest his or her fingers on the incisors in order to pivot a dental instrument. Over time, calluses form on the fingers of the hygienist or dentist due to the sharpness of the incisors. This also causes a loss of sensation.

Resting fingers on the incisors to pivot a dental instrument is also dangerous for the patient due to risk of slippage and loss of control of the dental instrument resulting from a combination of force, saliva, and use of a latex glove.

On the other extreme, some patients have no incisors, and thus no place to pivot a dental instrument, or loose teeth (periodontal disease) on which pressure cannot be applied without causing'pain to the patient. The present invention can therefore additionally serve as a fulcrum on which to pivot a dental instrument where the patient has no incisors or loose incisors.

A need therefore arises to provide protection to the fingers of an oral hygienist or dentist, improve the safety of patients by reducing the risk of slippage and loss of control of a dental instrument while treating the lower mandibular teeth, and provide a means to pivot a dental instrument where the patient has no incisors or loose incisors.

The need is satisfied in the form of the present invention which consists of a dental fulcrum, preferably of soft foam material capable of absorbing saliva, with a notch or slit in the center for insertion, wherein the dental fulcrum is placed over the incisors through the slit. The dental fulcrum reduces the risk of slippage because the soft foam provides friction against slippage, while also absorbing saliva, and avoids injury to the hands of the oral hygienist or dentist whose fingers may now rest on the soft foam to pivot a dental instrument.

While the dental fulcrum is designed for the lower front teeth, it is to be understood that it may be used for the upper teeth, as well as other teeth as a dentist or oral hygienists deems fit.

DRAWINGS

FIG. 1 is a perspective view of the preferred embodiment of a dental fulcrum of the present invention.

FIG. 2 is a side view of the dental fulcrum.

FIG. 3 is a front view of the dental fulcrum which is the same as the back view.

FIG. 4 is a bottom view of the dental fulcrum.

FIG. 5 is a top view of the dental fulcrum.

FIG. 6 is an illustration of the dental fulcrum in use by an oral hygienist while scaling teeth.

FIG. 7 is a perspective view of an alternate embodiment of a dental fulcrum of the present invention.

FIG. 8 is a side view of the alternate embodiment of the dental fulcrum.

FIG. 9 is a front view of the dental fulcrum, which is the same as the back view.

FIG. 10 is a bottom view of the dental fulcrum of the alternate embodiment.

FIG. 11 is a top view of the dental fulcrum of the alternate embodiment.

SUMMARY

The present invention seeks to provide a more comfortable and safer means of treating the lower mandibular teeth in the form of a device made of a soft material with a notch or slit in the middle for insertion over the incisors. This device is a dental fulcrum onto which an oral hygienist or dentists may rest his or her fingers to pivot a dental instrument. While the device may consist of any soft material for providing support, including hard plastic, aluminum, wax, gum, or rubber, the preferred material is foam, which provides sufficient friction against slippage while also absorbing saliva to reduce slippage. This improves safety for the patient. The use of soft material also protects the fingers of an oral hygienist or dentist from calluses. The larger the width of the device, the lower the risk of slippage as the device provides a greater area of pivot for the fingers and can absorb more saliva.

The device may be disposable or reusable. If disposable, the device would more likely be in the form of a soft foam. If reusable, hard plastic, aluminum or high density rubber may be used so that the device can withstand a cold sterilizer or the high temperatures and pressures of an autoclave.

DESCRIPTION

FIGS. 1-6 illustrates the preferred embodiment of a dental fulcrum 100 made of soft material, preferably foam, having a curved top 102 and a flat bottom 104, in which the curved top 102 has a longer length than the flat bottom 104. A notch or slit 106 is disposed in the center of the dental fulcrum 100, intersects the surface of the flat bottom 104, and cuts across the width of the dental fulcrum so that openings exist on the left and right sides 108. The slit 106 and openings on the left and right sides 108 allow the dental fulcrum 100 to be placed on incisors (not shown) and to be moved along the length of incisors 112. The notch or slit 106 is long enough and wide enough for the insertion of incisors 112. The front side 110A and back side 110B are slanted inward in the direction of the flat bottom 104. When pressure is placed on the surface of the curved top 102, the slanted front side 110 and slanted back side 110 will tend to close inward so that the slit 106 will grasp the incisors 112 (and gums) harder and stabilize the dental fulcrum on the incisors 112.

FIG. 6 illustrates the dental fulcrum 100 in use. The dental fulcrum 100 is placed on the incisors 112 through the notch or slit 106. An oral hygienist or dentist may rest his or her fingers on the dental fulcrum 100 as a pivot when scaling or treating teeth with a dental instrument 114. This avoids calluses on the fingers and reduces the risk of the fingers slipping on the incisors, as the dental fulcrum provides friction against slippage, and when foam material is used, absorbs saliva.

FIGS. 7-11 illustrates an alternate embodiment of the dental fulcrum 100. The front side 110A and back side 110B are not slanted inward toward the flat bottom 104, and the curved top and flat bottom are of substantially the same length. The surface area of the alternate embodiment is greater than the preferred embodiment, and therefore may be more bulky. When pressure is placed on the surface of the curved top 102, it is not transferred toward the slit 106, but instead is transferred toward the flat bottom 104 (and subsequently on the lips or tongue). The choice of the preferred embodiment over the alternate embodiment may depend on numerous factors, including gum sensitivity, size of mouth or teeth, patient's comfort, size of fingers, etc.

The preferred dimensions for the preferred embodiment are as follows: The slit is 2 mm in width at the top end and 3 mm wide at the bottom end (flat bottom side) and 6 mm long. The height of the dental fulcrum (front and back sides) is 12 mm. The width of the curved top is 20 mm from one end to the other end. The width of the flat bottom side is 11 mm, which includes the 3 mm wide opening formed by the slit. The length of the dental fulcrum should be sufficient to cover the incisors (four front teeth).

All features disclosed in this specification, including any accompanying claims, abstract, and drawings, may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise. Thus, unless expressly stated otherwise, each feature disclosed is one example only of a generic series of equivalent or similar features.

Although preferred embodiments of the present invention have been shown and described, various modifications and substitutions may be made thereto without departing from the spirit and scope of the invention. Accordingly, it is to be understood that the present invention has been described by way of illustration and not limitation. 

1. A dental fulcrum comprised of soft material sufficient to support the weight of a plurality of fingers and a dental instrument, with a front side and a back side of substantially the same length and width, a left side and a right side of substantially the same length and width, and a top side and a bottom side, wherein a slit is disposed in the center of the dental fulcrum intersecting the bottom side and creating openings on the left side and right side, the slit being long enough and wide enough for the insertion of incisors.
 2. The dental fulcrum of claim 1, wherein the soft material is foam.
 3. The dental fulcrum of claim 1, wherein the top side is curved, and the other sides are flat.
 4. The dental fulcrum of claim 1, wherein the top side has a length that is longer than the length of the bottom side, and the front side and back side are slanted inward in the direction of the bottom side.
 5. The dental fulcrum of claim 1, wherein the length of the top side and bottom side are substantially the same, and the front side and back side are perpendicular to the bottom side.
 6. The dental fulcrum of claim 1, wherein the soft material is plastic, aluminum, wax, gum, rubber, or other material with sufficient density to withstand a cold sterilizer and high temperatures and pressures of an autoclave. 